4.3 Population resource relationships

Question 1

food security

Answer 1

people ability to access sufficient safe and nutritious food to maintain a healthy active life

Question 2

The Green revolution pioneered by who?

Answer 2

pioneered by Norman Borlaug, american agronomist.
- Estimated to have saved 1 bn lives

– took off in the early 1960s

Question 3

What does the green revolution describe

Answer 3

describes the application of modern agricultural practices in developing countries - seen as answer to food shortages

Question 4

Who was one of the first to benefit

Answer 4

India when a high-yield variety seed programme was introduced in 1966

– hybrid varieties of wheat, maize & millet which were DROUGHT resitant and RESPONSIVE to application of fertilisers + faster growing than traditional varieties

Question 5

Advantages of green revolution

Answer 5

• – yields 2.4 x greater
• shorter growing season
• farming incomes increased
• more varied diets
• Multiplier effect - local infrastructure upgraded, employment created

Question 6

Disadvantages of Green revolution

Answer 6

high inputs of pesticides and fertilizers required

require more weed control

mechanisation has increased rural unemployment

farmers benefitted far more than majority on low incomes –> widening income gaps in rural communities